Honeywell HC900 Reference Manual page 235

4MUL Multiplier (4 input) Function Block
Description
The 4MUL label stands for Multiplication Mathematical Operation (4Inputs) .
This block is part of the Math category.
Function
Multiplies four inputs to get an output.
Input
X1 = First analog value
X2 = Second analog value
X3 = Third Analog value
Y = Fourth Analog value
ATTENTION
All four inputs must be connected. Unconnected inputs default to zero. If only three inputs are
needed, the fourth should be connected to a constant value of 1.
Output
OUT = Calculated analog value
Block properties
Double click on the function block to access the function block properties dialog box.
Revision 11
2/07
HC900 Hybrid Control Designer Function Block Reference Guide
Function Blocks
4MUL Multiplier (4 input) Function Block
221